Dot filling retainer for looms



R, M. PUTNAM DOT FILLING RETAINER FOR LOOMS A ril 16, 1946.

2 Sheets-Sheet 1 Filed July 16, 1945 April 16, 1946. M, PUTNAM 2,398,597

DOT FILLING RETAINER FOR LOOMS Filed July 16, 1945 2 Sheets-Sheet 2 Patented Apr. 16, 1946 'YIUNITED STATE DOT FILLING RETAINER FOR LOOMS Ralph M. Putnam, Drayton, S. C.

Application July 16, 1945, Serial No. 605,225 r a 4 Claims. (Cl. 139- 116) i This invention relates to a dot filling retainer on a loom of the box loom type where not only the ground filling is woven in by some of the shuttles but where a dot or design filling iswoven in by one ofv the. shuttles in the box cells. This is usually the top-most or bottom-most shuttle in the box cells, and it is an object of this invention to provide means for retaining this dot filling or design filling when it is being woven into the fabric by the top-most or bottom-most shuttle in the shuttle box cells. I am aware that, heretofore, various' devices have been devised for engaging this dot filling and holding it adjacent the selvages of the cloth being woven, but these are usually of the type to move downwardly from above the cloth to where they can engage the filling and many of these are pointed which results in piercing of the hands of the operators by this pointed finger moving downward- 1y over against the lay of the loom.

It is an object of this invention to provide a dotfilling retainer carried by the lay of the loom and controlled by the position of the shuttle box cells whereby a, pair of fingers, one on each edge oithe cloth may rise upwardly when the dot filling isbeing woven to engage and hold the dot filling and prevent its being carried back across the cloth.

It-is another object of this invention to provide a dot filling retainer comprising an oscillatable shaft carried by the lay of the loom and having uprising fingers fixed thereto whereby the position of the shuttle box will hold these fingers in lowered position when ground filling is being woven; but when a dot filling or design filling is being woven, the position of the shuttle box cells will allow these fingers to rise and to engage the filling on each side of the cloth. Some of the objects of the invention having been stated, other objects will appear as the description proceeds when taken in connection with the accompanying drawings in which Figure 1 is a top plan View of a portion of a loom showing the lay and the invention attached thereto;

Figure'2 is an end view looking from the left hand end of Figure 1 and showing the position of parts when the fingers are in operating position; t

Figure 3 isea view similar to Figure 2 but showing. the position of parts when the filling retainer fingers are in inoperative position;

v. t Figure 4 is a side elevation taken from the lower ei e b t Fi u e.

' tion. 7

t Figure ,5 is a side elevation of the lefthand portion of Figure 4 and showing a modified form of the invention; v 1 y Figure 6 is a sectional view taken substantiallyalong the line 6-6 in Figure 5. I p Referring more specifically to thei drawings the numeral It! indicates the lay of a loom having a conventional-reed" ll mounted therein, and held in position by a reed cap vI la. The loom is equipped with a shuttle box cell assembly R2 for supporting a 'pluralityof cells 12a, 12b, l2cand lZd for'receiving the shuttles when they arexcast across the lay of the loom in a'weaving opera- .Only one of theseshuttlesin the four cells shown in the drawings is usedat a-timeand conventional mechanism is employed foricontrolling the position of the shuttle box cells relativeeto the end of the lay. The shuttle box cell assem bly I2 is supported by a conventional'rod' l3, and on this rod I3 is mounted a bracket 14 which is adapted to assist in controlling the invention.

0n the beat-up side of the lay there are mounted a pair of slotted bars 45 each having a slot"; therein. The bars I5 are'disposed over a cavity H in the lay of the loom and in this cavity are disposed nuts I8 for receiving screws l9 whereby the brackets 20 can be adjusted along the slot [6. The bars 15 are secured to'the lay by means of screws 2| which penetratethe bars 15 and are embedded in the lay of the loom which is usually wood. The lay of the loom has a conventional race plate 22 extending thereacross; 1 l In the brackets 20 which have two ears projecting outwardly therefrom there is rotatably mounted a crank rod 23 which has adjustably mounted thereon a barrel member or sleeve member 24 by means of a set screw 25. These barrel members 24 have one or more slots cut in their peripheries and a screw 26 is secured in each of the barrel members 24 and a finger 21 is adapted to rest in one of these slots and be confined by the screw 26 in adjusted position so that its overall height can be adjusted.

Secured on the lay are'bearing members 30 in which a rod 3| is mounted for oscillation. This rod has a collar 32 adjustably secured thereon and a torsion spring 33 has one end thereof secured in collar 32 and the other end thereof is secured in one of the bearings 30. This torsion spring is biased to normallyturn the rod 3| in a, clockwise directionias viewed in Figs. 2 and 3. Theirod 3| has a crank member 35 adjustably secured 'on the end thereof adjacent the box cell assembly |2 and this crank projects downwardly and outwardly with respect to the selvage of the cloth and then away from the observer in Figure 4 to provide a curved cam portion 36. The bracket M in Figure 3 projects outwardly and inwardly toward the selvage of the fabric and is adjustably secured on the rod l3 and is adapted to engage cam portion 36 and rock rod 3| in a counterclockwise manner against the force of its torsion sprin 33 whenbox assembly l2 is dropped to its lowest position; r Y

Therefore, when any one of the three lowermost of the shuttle cells in Figure 4 are in alignment with the upper edge of the lay of the loom the parts will occupy the position-shown'in Figure 3 and the dot filling fingers 21 will not be in raised position because the spring 33 will hold the parts in the position shown inFigure 3.

However, when the top-most shuttlev cell is in alignment with the top of the lay of the loom as shown in Figure 4, then the parts will occupythe position shown in Figure 2 and this wi1l:oscillate the rod 3| and allow the fingers to rise-upwardly as: shown in Figure 2.. This is due to thefact that on the rod 3| there is'a pair-of arms 49 which are slotted as at 4| andieach slidably receives a small shaft 42 which has loosely mounted around thesa'me above the-arm 40 a compression spring 43. The upper end-of this compression springfits against a T-shaped member 44 which istpenetrated by a screw 45 which threadably engages the crank on the cranked member23-and pivotally supports the T-shaped member 44 on'the screw 45.

The lower end of the rod below the arm 40 has adjustablysecured thereon a collar '41- so that when :the rod 3| is rocked in a counterclockwise manner in Figures 1-4,.inclusive, it will cause the arms-40 through the medium of the compression springs-43 to oscillate the bell crank members 23 to raise the fingers 1.21 upwardly to the position shown in Figures 2 and 4.

In Figures and 6 a slightly modified formof the invention is shOWn and is adaptable for use when the dot filling or design filling is contained in the bottom-most cell'lZd instead of the tope most cell |2a of the shuttle box cell assembly. Here the bottom-most cell |2d is shown in alignment with the upper edge of the lay of the loom and instead of having a plain arm or bracket I4 on the rod I3, the rod I3 is also equipped witha companion arm Ma. Onthe front surface of these two arms is secured a plate 49 which is adapted to hold the fingers 2'! in lowermost posi-, tion'at all times asthe plate 49 will be rubbing against the crank portion 36 except when the shuttle assembly 12 has been raised-as shown in Figure 5, at which time it will allow the rod 3| to rock'in a clockwisemanner .(asviewed in Figure 5)- to raise-the-arms 50- on the rod 3|, these arms 50 being turned in a reverse directionifrom thatshown in Figures 1-4, inclusive.v This allows the :fingers to move upwardly into operative -position when the camportion '36 is notengaged by the plate 49 on the rod |3 supportingthe shuttle cell assembly. Otherwise; all 'other portions of the mechanism bear like reference characters,-the only difierencein the structuresin Figures;5 and 6 fromthat'in Fi gures- '14, inclusive, being-v that the: arm*50 is directed backwardly .toward the underneath portion of the -lay' whilev in Figures. l-4 the arms ware directedforwardlyto'the righthand portion ofthe lay salsa-shown in Figures 2 and 3 and towards the observer in "Figured.

, Thereason for the indirect connection between Oil links 40 and 50 and the crank members 23 in having the shafts 42 slidably mounted in the arm 40 or 50, respectively and having the compression springs 43 disposed therearound is that this is necessary because during the beatup the fingers while in elevated position will ride underneath the temples of the loom, the temples not being shown but being of conventional nature. However, the fingers are so disposed and are long enough so that their free end will not -.ride entirely' past the templesof the loom-soathat upon return movement of the lay away from beatup position the finger 21 will rise. upwardly to normal position to engage the dot filling being woven duringthe casting of the shuttle across from one side of the loom to the other. By having this spring 43 and the rods 42 slidably mounted in the-arms 40 or 50, respectively, this allows the fingers 21 to be depressed by engaging the temples and allows the rods 42 to slide downwardly relative to the arms 40 or .50; where 'a'rigid connection would notpermit such an operation;

In the drawings and specification there has been set forth a preferred embodiment of the invention, and although specific terms are employed, they are used in a generic and descriptive sense only, andnot for purposes of limitation, the scope of the invention being defined in the claims.

I claim:

1. In a box loom having a lay'and a-shuttle box having a plurality of cells supported for vertical movement relative to one end of the 'lay, a pair of dot filling fingers pivotally mounted on the beat-up side of the lay and normally biased to occupy asubstantially horizontal position-during weaving except when one of the cells having the dot filling is moved into alignment with the upper side of the lay, means controlled qby-the vertical position of the shuttle box for allowing said fingers to rock to substantially verticalposition when the dot filling cellin the shuttle box is in alignment with the upper edge of the lay.

2. In a box loom having alay and ashuttle box having a plurality of cells carried by the lay for'weaving ground filling and dot or design filling, a v pair of dot filling fingers adjustably mounted on the beat-up side of the lay and being oscillatably mounted, a rod oscillatably mounted on the lay, said rod havinga pair of arms secured thereon, links each having their lower ends slidably mounted in one of the arms and having their other ends operatively connected to the fingers, a spring-mounted around each ofthe links and normally urging the free ends of the fingers upwardly, a spring normally biasing the rod to turn to hold the free ends of the fingers in lowered position, a cam member extending from the rod and having a cam surface thereon, means carried by the shuttle box for engaging said cam for normally holding the fingers in substantially horizontal position, but moving out of engagement with the cam when the cell in the shuttle box is aligned with the top edge of the lay of the loom.

3. In a box loom having a lay and ashuttle box having a p urality of box cells therein associated with one end of the lay, said box being movable vertically relative to the lay to align one of the cells therein with the top of the lay, a dot filling retainer associated with the lay and comprising a pair of slottedplates secured to the beat-up side of the lay, each plate having adjustably mounted therealong a bracket,- a crank arm oscillatably mounted in-each bracket, a finger adjustably mounted on the crank arm,- aro'd oscillatably mounted on the lay below the crank arms and having a pair of arms secured thereto, links each having their lower ends slidably mounted in one of the arms and having their upper ends pivotally connected to the crank arms, a tension spring disposed between each arm on the oscillatable shaft and each crank arm, spring means normally biasing the osoillatable shaft in a direction to hold the fingers on the crank arms in lowered position, said oscillatableshaft having an arm thereon and means associated with the box cell assembly for engaging the arm and oscillating the oscillatable shaft to move the arms on the oscillatable shaft upwardly to allow the spring means on the links to move the fingers to elevated position when a given box cell is in 4. In a box loom having a lay and shuttle box assembly associated with one end of the lay and having a plurality of cells therein, a pair of filling retaining fingers oscillatably mounted on the beat-up side of the lay and normally occupying a substantially horizontal position, means associated with the box assembly for causing said fingers to assume an upright position when a predetermined cell in the box assembly is in alignment with the upper edge of the lay of the loom.

RALPH M. PUTNAM. 

